<div>
  <div class="content">
    <div class="close">
      <button ion-button clear (click)="close()">
        <ion-icon name="ios-arrow-down-outline"></ion-icon>
      </button>
    </div>
    <div class="block">
      <span *ngFor="let i of [1,2,3,4,5,6,7,8,9,'deleteAll',0,'delete']" [class.dark]="!isNumber(i)">
        <button ion-button clear (click)="change(i)">
          {{ isNumber(i)?i:'' }}
          <ion-icon name="ios-backspace-outline" *ngIf="i == 'delete'"></ion-icon>
          <ion-icon name="ios-trash-outline" *ngIf="i == 'deleteAll'"></ion-icon>
        </button>
      </span>
    </div>
  </div>
</div>
